MAC address

The MAC address, or Media Access Control address, (sometimes Physical address) is a unique identifier assigned to network adapters and network interface cards (NICs) by the manufacturer of the hardware. This address can be queried by users on the network the card is connected to. It is a permanent assignment to the network card, unlike an IP address which is assigned on a per-connection basis.

Windows

On Windows, you may query your own MAC addresses by running cmd and typing ipconfig /all. It will be a string of 6 2-digit hex numbers under each network device. Alternately, navigate to network connections> your device name >Status>Support>Details.